Halls of Ksarnia

From the introduction: The Ksarnian Pass tunneling beneath the slopes of the Dwemer mountains has been closed shut for ages. The gateway citadel set above its entrance is now a ruin defaced by the years. Whoever built it is long dead and forgotten by ungrateful chroniclers. Yet, as your party stands less than a mile away on this snowy and cold morning, it seems that you have no other choice.